R's Friends
type: MusicGroup
popularity: 9
followers: 305
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x341262e77aa90963a72b7d8df1bd17161d83d11700ac9dc274d3c2e17cc1d062
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eef7911c-80df-4f8d-a170-fe039a603368.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eef7911c-80df-4f8d-a170-fe039a603368.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eef7911c-80df-4f8d-a170-fe039a603368
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x341262e77aa90963a72b7d8df1bd17161d83d11700ac9dc274d3c2e17cc1d062","name":"R's Friends","registered_at":"2026-06-21T12:13:50Z","symbol":"NIM1920582","token_address":"0x555d1ca9ef1ec0459dad8a0b121616b5f95beb80","type":"artist","uuid":"eef7911c-80df-4f8d-a170-fe039a603368"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341262e77aa90963a72b7d8df1bd17161d83d11700ac9dc274d3c2e17cc1d062. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eef7911c-80df-4f8d-a170-fe039a603368.json and https://artists.proofprofile.net/proofs/artist/eef7911c-80df-4f8d-a170-fe039a603368.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x341262e77aa90963a72b7d8df1bd17161d83d11700ac9dc274d3c2e17cc1d062","name":"R's Friends","registered_at":"2026-06-21T12:13:50Z","symbol":"NIM1920582","token_address":"0x555d1ca9ef1ec0459dad8a0b121616b5f95beb80","type":"artist","uuid":"eef7911c-80df-4f8d-a170-fe039a603368"}
album: 木管楽器で奏でるジブリの世界 第1集
  type: MusicAlbum
  date published: 2012-09-12
  track: 崖の上のポニョ
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164986
    explicit: false
    by artist: R's Friends
    in album: 木管楽器で奏でるジブリの世界 第1集
      type: MusicAlbum
      date published: 2012-09-12
    isrc code: USA2P2307295
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T01:36:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x67b14b2e70525e616cbf1422542c35b473cf551e2eb7ba4a1591be815a01df66
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P2307295
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:38:24Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b14b2e70525e616cbf1422542c35b473cf551e2eb7ba4a1591be815a01df66. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:38:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P2307295.
      date published: 2026-07-21T04:38:24Z
    audio: 崖の上のポニョ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.641
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.622
      additional property: Energy
        type: PropertyValue
        value: 0.217
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.982
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.008
      additional property: Liveness
        type: PropertyValue
        value: 0.067
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.691
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.791
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major